A subway fabricated comprehensive bearing system

Abstract

The application discloses a subway assembled comprehensive bearing system, belongs to the field of subway engineering electromechanical and decoration installation technology, and comprises a pre-embedded part, a longitudinal bearing pole and a bearing hanger; wherein the pre-embedded part is pre-embedded in each subway structure beam, the longitudinal bearing pole is connected to the pre-embedded part, the bearing hanger is connected to the longitudinal bearing pole, and the bearing hanger is formed into a bearing structure through the transverse bearing pole and the vertical pole in a staggered manner to bear the to-be-borne part, thereby forming a comprehensive bearing system capable of installing electromechanical pipelines, terminal equipment and decoration suspended ceiling keels. The subway assembled comprehensive bearing system can avoid the use of expansion bolts for the on-site direct-buried fixing of the support hanger during on-site assembly and installation, solves the problems of low construction efficiency of the on-site drilling direct-buried mechanical anchor bolt, influence on the safety of the subway structure, and difficulty in guaranteeing the installation reliability of the support hanger, simultaneously reduces the number of fixed points of the support hanger system and the pipeline installation space, and improves the safety and reliability of the bearing system.

Description

Technical Field

[0001] This invention belongs to the field of electromechanical and decoration installation technology of subway engineering, and specifically relates to a prefabricated integrated load-bearing system for subways. Background Technology

[0002] Subway projects are characterized by confined interior spaces and numerous electromechanical systems. Various electromechanical system pipelines, signage, cameras, lighting fixtures, and other terminal equipment, as well as ceiling joists, all require supports and anchors to be fixed to concrete walls or beams. Anchors for these supports are typically installed by drilling holes on-site and securing them with mechanical anchors. Due to the large number of supports and anchor rods, this results in numerous holes being drilled in the concrete, leading to low construction efficiency and significant installation risks. Furthermore, the quality of drilling is difficult to guarantee, and the anchors themselves can damage the concrete, significantly impacting structural safety. The reliability of pipelines, terminal equipment, and ceilings within the station is also difficult to ensure. For subway projects, with their compact spaces and dense electromechanical pipelines, there is a greater need to reduce the number of anchor points in the support system and minimize pipeline installation space.

[0003] Currently, although many different types of integrated support and hanger systems have emerged, which comprehensively plan and lay various electromechanical pipelines, reduce the number of fixed hangers, and effectively control the overall space occupied, they have not solved the reliability and safety issues of on-site drilling and installation of supports and hangers. The quality of support and hanger installation is too dependent on the level of on-site construction. Summary of the Invention

[0004] In response to one or more of the above-mentioned defects or improvement needs of the existing technology, the present invention provides a prefabricated integrated load-bearing system for subways, which can reduce on-site direct burial fixing during subway assembly construction, improve construction efficiency, and reduce the impact on the safety of subway structures.

[0005] To achieve the above objectives, one aspect of the present invention provides a prefabricated integrated load-bearing system for subways, comprising: Embedded parts are embedded in the crossbeams of each subway structure. The longitudinal support bar is connected below the embedded part, and extends longitudinally with multiple bars spaced laterally. A load-bearing hanger is provided, which is arranged in multiple longitudinal intervals. Each load-bearing hanger includes an upright and a crossbar. The uprights extend vertically and are arranged in multiple transverse intervals. The top of each upright is connected to the longitudinal crossbar at a corresponding position. The crossbars extend horizontally and are arranged in multiple vertical intervals, and are connected to each upright. The load-bearing hanger is used to support the component to be supported.

[0006] As a further improvement of the present invention, the longitudinal support rod is connected to the embedded part through a fastener assembly; the fastener assembly includes a Z-shaped fastener and a fastening bolt, and the two ends of the Z-shaped fastener are respectively connected to the embedded part through the fastening bolt; the longitudinal support rod is engaged between the middle groove of the Z-shaped fastener and the embedded part, and is connected to the Z-shaped fastener through the fastening bolt.

[0007] As a further improvement of the present invention, both the longitudinal support rod and the embedded part are channel steel, and the openings of the channel steel are both set downwards; one end of the fastening bolt is stuck in the channel steel, which can move along the extension direction of the channel steel and is fixed by the fastening nut.

[0008] As a further improvement of the present invention, a steel pad is provided between the fastening bolt and the opening side of the channel steel, and the two ends of the steel pad abut against the inner wall surfaces at both ends of the opening of the channel steel.

[0009] As a further improvement of the present invention, a spring is also provided between the side of the channel steel away from the opening and the fastening bolt. One end of the spring abuts against the inner wall of the channel steel, and the other end abuts against the fastening bolt and is in a compressed state.

[0010] As a further improvement of the present invention, the longitudinal support, the transverse support and the upright are all channel steel, and the longitudinal support and the upright, as well as the upright and the transverse support, are connected by right-angle connecting components; The right-angle connection assembly includes a right-angle connector and a latch. The right-angle connector includes a first connecting part and a second connecting part that are perpendicular to each other and fixedly connected. Both the first connecting part and the second connecting part include at least one connecting surface. Each connecting surface is provided with at least one mounting hole. The latch passes through the mounting hole and connects to each channel steel.

[0011] As a further improvement of the present invention, a channel steel end cap is provided on the side of the upright opposite to the longitudinal support, and the channel steel end cap is fixedly sleeved on the end of the upright.

[0012] As a further improvement of the present invention, an anchor bar is fixedly provided on the outer side of the embedded part. The anchor bar has a T-shaped structure, and the diameter of the end away from the embedded part is larger than the diameter of the other end.

[0013] As a further improvement of the present invention, the embedded part is also embedded in the top plate of the subway structure between two adjacent subway structure beams.

[0014] Another aspect of the present invention provides a construction method for a prefabricated integrated load-bearing system for subways, used for the assembly and construction of the aforementioned prefabricated integrated load-bearing system for subways, comprising the following steps: (1) Calculate the load to be borne by the integrated load-bearing system, and determine the number, location, specifications and model of the embedded parts; (2) Fill the hollow part of the embedded part with foam and wrap it with a sealing film. Then place the embedded part in the embedded position, and then pour the concrete of the subway structure beam and the subway structure top plate to complete the embedding and fixing of the embedded part. (3) Verify the installation quality and load-bearing capacity of the embedded parts; (4) Connect and fix the longitudinal support rod to the embedded parts, then connect and fix the vertical pole to the longitudinal support rod, and finally connect and fix the cross support rod to the vertical pole to complete the installation and construction of the subway prefabricated integrated load-bearing system.

[0015] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0016] In summary, the beneficial effects of the above-described technical solutions conceived by this invention compared with the prior art include: (1) The subway prefabricated integrated load-bearing system of the present invention embeds the pre-embedded parts in the cross beam of the subway structure and installs the load-bearing hanger under the pre-embedded parts through the longitudinal support rod. In the subsequent subway construction, the electromechanical pipelines, terminal equipment and decoration ceiling keel and other load-bearing parts are fixedly installed on the load-bearing hanger. This avoids the use of expansion bolts for direct on-site installation of the support hanger. It solves the problems of low construction efficiency of on-site drilling and direct burial of mechanical anchor bolts, which affects the safety of the subway structure and makes it difficult to guarantee the reliability of the support hanger installation. At the same time, it reduces the number of fixed points of the support hanger system and the pipeline installation space, and improves the safety and reliability of the load-bearing system.

[0017] (2) The subway prefabricated integrated load-bearing system of the present invention sets both the embedded parts and the longitudinal support rods as channel steel with the opening facing downwards, and clamps one end of the fastening bolt in the channel steel. In actual installation, the installation position of the longitudinal support rod can be flexibly adjusted by moving the fastening bolt along the extension direction of the channel steel, and fixed by the fastening nut, thereby improving the flexibility of the load-bearing hanger installation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the metro prefabricated integrated load-bearing system in an embodiment of the present invention; Figure 2 This is a cross-sectional schematic diagram of the metro prefabricated integrated load-bearing system in an embodiment of the present invention; Figure 3 yes Figure 2Enlarged view of section A; Figure 4 This is a longitudinal cross-sectional schematic diagram of the metro prefabricated integrated load-bearing system in an embodiment of the present invention; Figure 5 yes Figure 4 Enlarged view of section B; Figure 6 This is a schematic diagram of the structure of the groove-type embedded part in an embodiment of the present invention; Figure 7 This is a schematic diagram of the fastener assembly in an embodiment of the present invention; Figure 8 This is a schematic diagram of the assembly of the fastener assembly and the channel steel body in an embodiment of the present invention; Figure 9 This is a structural schematic diagram of the right-angle connector in an embodiment of the present invention; Figure 10 This is a schematic diagram of the assembly of the right-angle connecting component and the channel steel in an embodiment of the present invention.

[0020] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Embedded part; 101. Anchor bar; 1'. Sub-channel type embedded part; 2. Spring; 3. Fastening bolt; 4. Steel pad; 5. Longitudinal support bar; 6. Z-shaped fastener; 7. Upright pole; 8. Horizontal support bar; 9. Right angle connector; 901. First connecting part; 902. Second connecting part; 903. Mounting hole; 10. Locking buckle; 11. Channel steel end cap; 12. Subway structural beam; 13. Subway structural column; 14. Subway structural roof slab. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0022] In the description of this invention, it should be understood that, unless otherwise expressly specified and limited, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0023] Furthermore, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

[0024] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] Example: Please see Figures 1-10 In a preferred embodiment of the present invention, the metro prefabricated integrated load-bearing system includes an embedded part 1, a longitudinal support rod 5, and a load-bearing hanger. The load-bearing hanger is connected to the embedded part 1 embedded in the metro structural beam 12 through the longitudinal support rod 5, and the metro electromechanical system is assembled and supported through the load-bearing hanger.

[0027] Specifically, such as Figure 1 As shown in the preferred embodiment, the embedded part 1 is installed inside the subway structure beam 12 and extends laterally. Preferably, the embedded part 1 is a channel steel, and more preferably, the opening width of the channel steel is smaller than the inner diameter width of the channel steel, forming a C-shaped channel steel, such as... Figure 6 As shown, it is embedded in the crossbeam 12 of the subway structure, serving as a main channel type embedded part, bearing the main load of the integrated bearing system, and can be accurately positioned according to the crossbeam 12 of the subway structure; preferably, an embedded part 1 is embedded in each crossbeam 12 of the subway structure.

[0028] Preferably, an anchor bar 101 is also fixedly welded to the outside of the embedded part 1 to increase the contact area between the embedded part 1 and the subway structural beam 12, thereby increasing the friction between the embedded part 1 and the subway structural beam 12, and thus enhancing the load-bearing capacity of the integrated load-bearing system and avoiding the risk of slippage. More preferably, the anchor bar 101 has a T-shaped structure, with the diameter of the end facing away from the embedded part 1 being larger than the diameter of the other end, to further enhance the anchoring force of the anchor bar 101.

[0029] Preferably, the embedded part 1 is also embedded in the top plate 14 of the subway structure between two adjacent subway structure beams 12 to form a secondary embedded part 1'. The secondary embedded part 1' is set parallel and spaced apart from the main channel embedded part to avoid problems such as uneven stress caused by the large span between the subway structure beams 12.

[0030] In actual installation, the number of secondary embedded parts 1' is related to the load borne by the integrated load-bearing system and the span between the subway structural beams 12. When the load is large or the span between the subway structural beams 12 is large, the number of secondary embedded parts 1' is increased.

[0031] It is understood that in this embodiment, the longitudinal direction refers to the extension direction of the subway station. The subway structural beam 12 extends laterally in a direction perpendicular to the extension direction of the subway station, and its two ends are supported by subway structural columns 13. Furthermore, multiple subway structural beams 12 are spaced apart longitudinally, such as... Figure 1 As shown in the diagram, the X direction is vertical, the Y direction is horizontal, and the Z direction is vertical.

[0032] Furthermore, in the preferred embodiment, the longitudinal support bar 5 is also a C-shaped channel steel, which extends longitudinally and is arranged in multiple transverse intervals, and the opening of each longitudinal support bar 5 channel steel is arranged downward and connected to the bottom of the embedded part 1.

[0033] Preferably, the longitudinal support rod 5 is fixedly connected to the embedded part 1 via a fastener assembly; such as Figure 7 and Figure 8 As shown, the fastener assembly includes a U-shaped fastener 6 and a fastening bolt 3. Both ends of the U-shaped fastener 6 are fixedly connected to the open side of the channel steel of the embedded part 1 via the fastening bolt 3. Simultaneously, one end of the fastening bolt 3 is engaged within the channel steel of the embedded part 1 and can move along the direction of the channel steel opening. This lateral movement of the fastening bolt 3 adjusts the fixed position of the longitudinal support rod 5, facilitating installation, fixing, and disassembly. Correspondingly, after the position is adjusted, the other end of the fastening bolt 3 is fixed by a fastening nut. The longitudinal support rod 5 is engaged between the central groove of the U-shaped fastener 6 and the embedded part 1, and is fixedly connected to the U-shaped fastener 6 via the fastening bolt 3, thereby fixing the longitudinal support rod 5 to the embedded part 1.

[0034] Preferably, steel pads 4 are provided between the fastening bolt 3 and the channel steel opening side of the embedded part 1, and between the fastening bolt 3 and the channel steel of the longitudinal support rod 5. The two ends of the steel pads 4 abut against the inner wall surfaces at both ends of the channel steel opening, so as to increase the contact area between the fastening bolt 3 and the channel steel, thereby increasing the stress area.

[0035] Preferably, springs 2 are provided between the side of the embedded part 1 channel steel away from the outlet and the fastening bolt 3, and between the fastening bolt 3 and the side of the longitudinal support rod 5 channel steel away from the outlet. One end of the spring 2 abuts against the inner wall of the channel steel, and the other end abuts against the fastening bolt 3 and is in a compressed state, so as to provide continuous elastic tension for the fastening bolt 3 after it is tightened, and to prevent the fastening bolt 3 from loosening.

[0036] Furthermore, in the preferred embodiment, the load-bearing hangers are arranged at longitudinal intervals in multiple configurations, such as... Figures 1-5 As shown, each load-bearing hanger includes an upright 7 and a crossbeam 8, preferably both the upright 7 and the crossbeam 8 are C-shaped channel steel; wherein, the upright 7 extends vertically and is arranged in multiple horizontally spaced sections, and the number of upright 7 in each load-bearing hanger is the same as the number of longitudinal crossbeams 5, and the top of each upright 7 is connected to the longitudinal crossbeam 5 at the corresponding position; the crossbeam 8 extends horizontally and is arranged in multiple vertically spaced sections, and each crossbeam 8 is simultaneously connected to each upright 7, forming a fence-like load-bearing hanger for supporting the component to be supported.

[0037] Preferably, the uprights 7 and the longitudinal support 5, and the uprights 7 and the transverse support 8 are all fixedly connected by right-angle connecting components, forming a prefabricated integrated load-bearing structure for electromechanical pipelines, decorative ceiling joists, and terminal equipment, such as... Figure 9 and Figure 10 As shown, the right-angle connection assembly includes a right-angle connector 9 and a latch 10; wherein, the right-angle connector 9 includes a first connecting part 901 and a second connecting part 902 that are perpendicular to each other and fixedly connected, and both the first connecting part 901 and the second connecting part 902 include at least one connecting surface, and each connecting surface is provided with at least one mounting hole 903. The latch 10 passes through the mounting hole 903 and is fixedly connected to each channel steel, thereby realizing the fixed connection between the channel steels through the right-angle connection assembly.

[0038] In actual installation, the spacing between the longitudinal support rod 5, the upright rod 7 and the transverse support rod 8 can be adjusted according to the site conditions and positioned based on the embedded part 1.

[0039] Preferably, a channel steel end cap 11 is provided on the side of the upright 7 away from the longitudinal support 5. The channel steel end cap 11 is fixedly sleeved on the end of the upright 7 to protect the inside of the upright 7 and wrap the sharp edges to eliminate safety hazards.

[0040] The metro prefabricated integrated load-bearing system of this invention can connect all electromechanical pipelines, ceiling joists, and terminal equipment such as cameras, loudspeakers, guide signs, and lights in the metro project to the load-bearing hanger, thereby realizing the unified planning and design of integrated pipelines and terminal equipment in the metro project, reducing collisions between pipelines, and reducing the installation space for electromechanical pipelines and terminal equipment.

[0041] Furthermore, the present invention also provides a construction method for a prefabricated integrated load-bearing system for subways, used for the assembly and construction of prefabricated integrated load-bearing systems for subways, specifically including the following steps: (1) Calculate the load to be borne by the integrated load-bearing system, and determine the number, location, specifications and model of the embedded parts 1; (2) Fill the hollow part of the embedded part 1 with foam and wrap it with a sealing film. Then place the embedded part 1 in the embedded position, and then pour the concrete of the subway structure beam 12 and the subway structure top plate 14 to complete the embedding and fixing of the embedded part 1. Understandably, during actual construction, depending on the load to be borne, the embedded part 1 can be embedded only in the subway structure beam 12. If the load to be borne is large or the span of the subway structure beam 12 is large, the required number of embedded parts 1 can also be embedded in the subway structure top slab 14. (3) Verify the installation quality and load-bearing capacity of the embedded part 1; (4) Connect and fix the longitudinal support 5 to the embedded part 1, then connect and fix the vertical pole 7 to the longitudinal support 5, and finally connect and fix the cross support 8 to the vertical pole 7 to complete the installation and construction of the subway prefabricated integrated load-bearing system.

[0042] After the construction of the prefabricated integrated load-bearing system for the subway is completed, all electromechanical pipelines, ceiling joists, cameras, loudspeakers, signboards, lights and other terminal equipment of the subway project can be connected to the load-bearing hangers as needed.

[0043] All components of this invention are prefabricated in a standardized factory, forming uniformly sized components for on-site assembly and fixing. This allows for the assembly of integrated load-bearing supports and hangers according to on-site construction conditions, and their positions are easily adjusted. This avoids the need for direct on-site burial of supports and hangers using expansion bolts, improving the safety and reliability of the support and hanger system and reducing the number of fixing points and pipeline installation space. Except for the channel-type embedded parts, the integrated load-bearing system described in this invention is easy to install, fix, and disassemble, which helps improve construction efficiency, construction safety, and the reliability of the support and hanger system.

[0044] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A prefabricated integrated load-bearing system for subways, characterized in that, include: Embedded parts are embedded in the crossbeams of each subway structure. The longitudinal support bar is connected below the embedded part, and extends longitudinally with multiple bars spaced laterally. A load-bearing hanger is provided, which is arranged in multiple longitudinal intervals. Each load-bearing hanger includes an upright and a crossbar. The uprights extend vertically and are arranged in multiple transverse intervals. The top of each upright is connected to the longitudinal crossbar at a corresponding position. The crossbars extend horizontally and are arranged in multiple vertical intervals, and are connected to each upright. The load-bearing hanger is used to support the component to be supported.

2. The prefabricated integrated load-bearing system for subways according to claim 1, characterized in that, The longitudinal support rod is connected to the embedded part through a fastener assembly; the fastener assembly includes a Z-shaped fastener and a fastening bolt, and the two ends of the Z-shaped fastener are respectively connected to the embedded part through the fastening bolt; the longitudinal support rod is engaged between the middle groove of the Z-shaped fastener and the embedded part, and is connected to the Z-shaped fastener through the fastening bolt.

3. The prefabricated integrated load-bearing system for subways according to claim 2, characterized in that, Both the longitudinal support rod and the embedded part are channel steel, and the openings of the channel steel are all facing downwards; one end of the fastening bolt is stuck inside the channel steel, which can move along the extension direction of the channel steel and is fixed by the fastening nut.

4. The prefabricated integrated load-bearing system for subways according to claim 3, characterized in that, A steel pad is provided between the fastening bolt and the opening side of the channel steel, and the two ends of the steel pad abut against the inner wall surfaces at both ends of the opening of the channel steel.

5. The prefabricated integrated load-bearing system for subways according to claim 3, characterized in that, A spring is also provided between the side of the channel steel away from the opening and the fastening bolt. One end of the spring abuts against the inner wall of the channel steel, and the other end abuts against the fastening bolt, and is in a compressed state.

6. The prefabricated integrated load-bearing system for subways according to claim 1, characterized in that, The longitudinal support, transverse support, and upright are all made of channel steel, and the longitudinal support and the upright, as well as the upright and the transverse support, are connected by right-angle connecting components. The right-angle connection assembly includes a right-angle connector and a latch. The right-angle connector includes a first connecting part and a second connecting part that are perpendicular to each other and fixedly connected. Both the first connecting part and the second connecting part include at least one connecting surface. Each connecting surface is provided with at least one mounting hole. The latch passes through the mounting hole and connects to each channel steel.

7. The prefabricated integrated load-bearing system for subways according to claim 6, characterized in that, A channel steel end cap is provided on the side of the upright that is away from the longitudinal support, and the channel steel end cap is fixedly sleeved on the end of the upright.

8. The prefabricated integrated load-bearing system for subways according to any one of claims 1 to 7, characterized in that, An anchor bar is fixedly installed on the outside of the embedded part. The anchor bar has a T-shaped structure, and the diameter of the end away from the embedded part is larger than the diameter of the other end.

9. The prefabricated integrated load-bearing system for subways according to claim 8, characterized in that, The embedded part is also embedded in the top plate of the subway structure between two adjacent subway structure beams.

10. A construction method for a prefabricated integrated load-bearing system for subways, used for the assembly and construction of the prefabricated integrated load-bearing system for subways as described in any one of claims 1 to 9, characterized in that, Includes the following steps: (1) Calculate the load to be borne by the integrated load-bearing system, and determine the number, location, specifications and model of the embedded parts; (2) Fill the hollow part of the embedded part with foam and wrap it with a sealing film. Then place the embedded part in the embedded position, and then pour the concrete of the subway structure beam and the subway structure top plate to complete the embedding and fixing of the embedded part. (3) Verify the installation quality and load-bearing capacity of the embedded parts; (4) Connect and fix the longitudinal support rod to the embedded parts, then connect and fix the vertical pole to the longitudinal support rod, and finally connect and fix the cross support rod to the vertical pole to complete the installation and construction of the subway prefabricated integrated load-bearing system.

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